And thus, though surrounded by circle upon circle of consternations and affrights, did these inscrutable creatures at the centre freely and fearlessly indulge in all peaceful concernments; yea, serenely revelled in dalliance and delight.

Chapters 85-87 -- The Fountain; The Tail; The Grand Armada (89% in)

Do you know, gentlemen"—very gravely and mathematically bowing to each Captain in succession—"Do you know, gentlemen, that the digestive organs of the whale are so inscrutably constructed by Divine Providence, that it is quite impossible for him to completely digest even a man's arm?

Chapters 100-102 -- The Pequod meets….; The Decanter; A Bower in the Arsacides (36% in)

But did you deeply scan him in his more secret confidential hours; when he thought no glance but one was on him; then you would have seen that even as Ahab's eyes so awed the crew's, the inscrutable Parsee's glance awed his; or somehow, at least, in some wild way, at times affected it.

What is it, what nameless, inscrutable, unearthly thing is it; what cozening, hidden lord and master, and cruel, remorseless emperor commands me; that against all natural lovings and longings, I so keep pushing, and crowding, and jamming myself on all the time; recklessly making me ready to do what in my own proper, natural heart, I durst not so much as dare?